<!doctype html>

<title>03 Nested Elements - React From Zero</title>

<script src="https://unpkg.com/react@15.4.2/dist/react.js"></script>
<script src="https://unpkg.com/react-dom@15.4.2/dist/react-dom.js"></script>
<script src="https://unpkg.com/babel-core@5.8.38/browser.min.js"></script>

<div id="app"></div>

<script type="text/babel">

// Elements can be nested, which will result in nested React.createElement calls
// As you can imagine, writing withs without JSX would be pretty tedious
var reactElement =
  <div className='abc'>
    <h1>Hello</h1>
    <h2>world</h2>
  </div>

// they can also, like mentioned in lesson 2, contain JavaScript in {}
var myClass = 'abc'

function myText() { return 'world' }

// JavaScript insertion has the same syntax in attributes as in normal text or elements
reactElement =
  <div className={myClass}>
    <h1>Hello {10 * 10}</h1>
    <h2>{myText()}</h2>
  </div>

// this JavaScript can contain elements too
var nestedElement = <h2>world</h2>

reactElement =
  <div>
    <h1>Hello</h1>
    {nestedElement}
  </div>

// it is also possible to "spread" an object as properties
var properties = {
  className: 'abc',
  onClick: function() { alert('click') },
}

reactElement =
  <div {...properties}>
    <h1>Hello</h1>
    <h2>world</h2>
  </div>

var renderTarget = document.getElementById('app')

ReactDOM.render(reactElement, renderTarget)

</script>